Analiza rezalnih sil in obrabe orodja pri obdelavi nerjavečega jekla

Polajnar, Gašper (author), Pušavec, Franci (mentor)

V magistrskem delu je predstavljena primerjava mehanske obdelave nerjavečega jekla s tremi različnimi načini hlajenja: emulzija, zrak in ogljikov dioksid ▫$(CO_2)$▫, mešan z minimalno količino oljne megle (MQL). Glavna elementa raziskave sta rezalne sile in obraba orodja po dveh urah CNC obdelave s povečanimi parametri od priporočenih vrednosti. Pokazali smo, da sta za obdelavo nerjavečega jekla primerna emulzija in ▫$CO_2+MQL$▫, obdelava z zrakom pa se je izkazala za neprimerno metodo hlajenja orodja.

• Language: Slovenian
• Keywords: nerjaveče jeklo, CNC obdelava, rezalne sile, obraba orodja, emulzija, zrak, kapljeviti ogljikov dioksid, minimalna količina oljne megle
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [G. Polajnar]
• Year: 2024
• Number of pages: XXII, 73 str.
• PID: 20.500.12556/RUL-156434
• UDC: 691.714.018.8:621.56:66.022.5(043.2)
• COBISS.SI-ID: 196909571
• Publication date in RUL: 25.05.2024

Secondary language

• Language: English
• Title: Analysis of cutting forces and tool wear in milling of stainless steel

Abstract

The master's thesis presents a comparison of mechanical processing of stainless steel using three different cooling methods: emulsion, air, and carbon dioxide ▫$(CO_2)$▫ mixed with a minimal quantity lubrication oil mist (MQL). The main elements of the research were cutting forces and tool wear after 2 hours of CNC machining with increased parameters beyond the recommended values. We demonstrated that emulsion and ▫$CO_2+MQL$▫ are suitable for processing stainless steel, while air cooling proved to be an unsuitable method for tool cooling.

• Keywords: stainless steel, CNC machining, cutting forces, tool wear, emulsion, air, leaking carbon dioxide, minimum quantity lubrication